八年级下语文练习册答案人教版2020第一单元 1课藤野先生 一1、fēi jì pá jiã sù dìng pōu qī piē 2鉴蔼畸逊寓匿疾诲聊3(1)借口。 (2)指改朝换代后仍 眷念前朝不肯归顺新朝的人。 (3)这里是反语，丑陋。 (4)这里是反语，指十分熟知一些无聊的事。(5)这里是反语，指 那些为军阀政客张目而自命为“正人君子”的文人。 (6)这里指学校里发生过的一些事情。4(1)周树人绍兴文学思想革 命(2)《朝花夕拾》《阿长与<山海经)》《从百草园到三味书屋》《呐喊》《彷徨》《野草》 (一)5“这样”指“清国留学生”的种种丑态丑行。“无非”是只 不过的意思，表达了作者对东京的失望之情。这句话引出前两段内容，表达作者对“清国留学生”的厌恶和反感，为下文到别的地方去看看 埋下了伏笔。 6厌恶、鄙弃的态度。通过描写“清国留学生”观樱花的丑态和学跳舞的丑行来表现的，并使用比喻、夸张、反语等修辞手法增强这种 表达效果。 7“时时记起”是因为“在我所认为我师之中，他是最使我感激， 给我鼓励的一个”“他的性格，在我的眼里和心里是伟大的”。藤野 先生的伟大人格主要体现在两方面：一是对工作极为认真，对学生极 为负责；二是毫无狭隘的民族偏见。 8答案举例：作者两次易地求学，两次辗转奔波，都贯穿着爱国主义情怀。文章开头写对东京的清国留学生的失望和厌恶，是作者爱国 思想的表现；往仙台途中记得“日暮里”，也有“日暮乡关何处是”
的家国愁思；记得“水户”，是因为这里是富有民族气节和爱国情感的抗清志士朱舜水客死之地，这也是作者爱国感情的表现。9略 10(1)这些词语表现了藤野先生对工作的热忱、负责、一丝不苟的品质，也写出了“我”的吃惊、对先生的感激及内心的不安。(2)“喝采”说明这些闲人已经麻木到令人震惊的水准，表现了作者极其沉痛的情感。“何尝”表达了作者强烈的愤慨。 (二)11有才学，工作极端认真，管理严格。善于教育学生，热爱学生。12详写了“我”犯错而被教育；略写了老师的严厉，“我”的造句受到表扬，老师带“我”吃油茶以及坐错车。好处是：突出老师对“我”的教育，同时也表现老师的其他方面的性格特点，使老师的形象鲜明而富有个性。13(1)对“我”犯错的不满，为“我”回避惩罚而生气、惋惜。(2)为犯错而脸红，为同学替自己辩护而感害羞，为自己逃避惩罚而惭愧，为有负华老师的希望而不安。 14朴实、亲切、含蓄、委婉、平淡中蕴含深情。
第一学期期末测试卷 第Ⅰ卷听力部分 听力材料： 一、1.With the help of soft music, the child falls asleep soon. 2．More and more Indians come to study in China. 3．He has gone to the countryside for the holiday. 4．The nine-year-old boy was brave enough to save his classmates when the earthquake happened. 5．He is interested in English. 二、6.M：How does Tom learn Chinese? W：He learns Chinese by listening to the radio. Q：How does Tom learn Chinese? 7．M：Jenny，can you come to my birthday party on June 20th? W：Sure，I'd love to. Q：When is the boy's birthday? 8．M：Do you like monkeys? W：Yes，they are clever.In fact，I like many animals，such as tigers and elephants.But my favorite animal is pandas. Q：What animal does the woman like best? 9.M：It's Father's Day this Sunday.What shall we get for Dad，Mum? W：Mmm，it's hard to decide.How about shoes? M：He has a lot of pairs of shoes.How about tennis rackets？He really likes sports. W：That's a great idea. Q：What will the boy's father probably get? 10.W：Tom，let's hurry.It's eight o'clock now.The train is coming. M：Don't worry，Mum.Actually it is seven.Your watch doesn't work. Q：What time is it now? 三、Dialogue 1 M：Maria，can you come to my party on Tuesday?
Module 11达标测试卷 第Ⅰ卷听力部分 听力材料： 一、1.My sister did some cleaning at home yesterday morning. 2．Most Chinese people eat noodles with chopsticks. 3．Don't open the gift now! You must wait and open it later. 4．The two kids are playing chess. 5．She bought a baseball cap for her brother. 二、Text 1 M：Hello，Jenny! What are you doing? W：I'm watching the news on TV. M：What's it about? W：About Chinese traditions. M：Oh，do you know much about them? W：No，only a little.I hope I will visit China one day. Text 2 W：Hi，Tom! Where are you going for this summer holiday? M：I'm going to Dalian，China. W：Why are you going there? It's far from here. M：It's cool in summer.And there are beautiful beaches，too. W：Will you visit the places of interest there? M：Of course.I'm going to visit every places of interest there.
UNIT 3达标测试卷 第I卷听力部分 听力材料： 一、1.There is a mouse in the shoebox. 2．It's five to eight now.Our class will begin. 3．My favourite animals are giraffes. 4．Lucy is afraid of the bears. 5．Jack will arrive in Beijing tomorrow. 二、6.Why not go to the zoo with me this afternoon? 7．Don't feed the animals in the zoo. 8．Can you go fishing with me this afternoon? 9．Jenny，thanks for helping me feed my pet dog. 10．I lost my cat on my way to the supermarket yesterday. 三、11.W：Tom，you forgot to write down the year of your birth in the form. M：Oh，sorry. I was born in 1998，the year of the tiger. Q：Which animal is mentioned in the conversation? 12．W：The sky is clear and blue! Would you like to go horse riding with me? M：I'd like to.But I have to make a speech this morning. Q：What is the man going to do? 13．W：Hi，Jim. You look stronger than before. M：Yes. I ride a bike to work instead of driving these days. Q：How does the man go to work these days? 14．W：Do you think your work is boring? M：Boring？No，it's interesting. Q：What does the man mean? 15．M：What do you want to be in the future，Lily? W：I want to be a teacher like you, Mr. Li. M：But now you must study hard. Q：What is the relationship between the speakers? 四、A man hated his wife's cat and decided to throw it away. One day, he drove it 20 blocks from his home and left it in a park. But after a while, the cat came back home. The next day he drove the cat 40 blocks away. He put the cat out of the car and went home. After he drove back home, he found the cat was there already. The man kept taking the cat further and further, but the cat would always get home before him. At last he decided to drive a few miles away, turn right, then left, past a bridge, then right again and another right, until he thought he was far enough from home and left the cat there. Hours later the man was still driving home.He was lost! He called home and asked his wife，“Jen, is the cat there？” “Yes，” his wife answered.“Why do yo u ask？” The man answered, “Put the cat on the phone.I'm lost and need directions.” 听力答案：
Module 8达标测试卷 第Ⅰ卷听力部分 听力材料： 一、1.Jack was climbing a tree yesterday afternoon. 2．The fridge is full of different kinds of drinks and fruits. 3．A black car hit a green car just now. 4．You look pale, and you should go to see a doctor. 5．My son likes to bite the nails. 二、Text 1 W：What's wrong with your hand? M：A snake bit my hand. W：When did the snake bite you? M：Earlier this morning.It suddenly appeared in front of me and bit my hand. W：Can you show me a photo of it? M：Yes.Here it is. Text 2 W：There was an accident outside the school gate just now. M：What happened? W：A boy on a bike was riding too fast.His bike hit a car.Luckily，he only hurt his leg. M：Was he taken to the hospital?
W：No，Li Fei and Wang Yong took him to the school gatekeeper's room. M：Who is looking after him? W：Mrs.Li. 三、W：It was very cold last Sunday.Paul and his friends went to the lake after breakfast.They began to skate on the ice.Paul skated better than his four friends.He skated fast and didn't know a piece of ice was broken.He fell into the water.His friends were afraid and called for help.Just then two workers walked there and heard it. They ran there quickly and helped the boy come out of the water.Then they took him to a hospital.Paul and his parents thanked them very much. 四、Hi，everyone! I am https://www.doczj.com/doc/7b15846546.html,st week I went to see my good friend，Li Ming.On the way to his home，I rode and listened to music.I rode too fast.Suddenly，my bike hit a big tree.My legs and arms couldn't move.I was in a lot of pain.A passer-by took me to the hospital at once. 听力答案： 一、1～5：CAEDB 二、6～10：AAABC 三、11～15: ACBCC 四、16.home17.fast18.pain 19．took20.hospital 第Ⅱ卷笔试部分 五、21.A22.C
UNITS 10～11 综合测试卷 第Ⅰ卷听力部分 听力材料： 一、1.You are not supposed to bow in my country. 2．It is impolite to put your bread on the table in China. 3．If you knew nothing about French culture，you would make such mistakes. 4．I would play sports rather than play computer games at home. 5．By the time you come back，I shall have finished the job. 二、6.Tomorrow is Saturday. Shall we go to see a movie? 7．Why do you look so sad? 8．May I know your name? 9．What does your brother do? 10．What do you think of the concert? 三、11.W：Ben，are you free now? M：Yes. What's up? W：Could you do me a favor and repair my clock for me? It doesn't work. M：Sure. 12. M：How about going hiking with us? W：Sounds good. Who else? M：John，Henry and Lily. W：When and where shall we meet? 13. W：How often do you read magazines after dinner? M：I read them quite often. I mean five or six times a week. I like to read magazines about environment. There is also a movie magazine that I like a lot. 14. M：Do you do volunteer work? W：Yes. M：How often? W：About twice a month. 15. M：Is anyone here studying a foreign language? W：I am. I have been studying Chinese for a year. M：Why? W：Because I want to find a job in China after graduation. 四、Do you know Mr Lee? He lived with six hundred wild animals on a small island. After he left school，he traveled all over the world to collect animals for his own zoo. He hoped to collect two examples of every kind of animal on his island. But he was afraid that people would find him some day. He wrote books about his travels，and about his animals that he collected. The money from the books helped to pay for all the food that these animals ate. One day，when Mr Lee was out looking for drinking water，he found oil. He needed money for his travels and for his zoo，and a little oil would buy enough water that he needed all his life，but he knew that if he told anybody else about it，it would be the end of his zoo and his life's work. So he decided not to tell anyone about what he had found，because oil and
Module 10达标测试卷 第Ⅰ卷听力部分 听力材料： 一、1.Look! There are so many black clouds in the sky. 2．It is snowy today. 3．It may be rainy, so it's a good idea to bring an umbrella. 4．I want to go to the park, but it's raining now. 5．The best time to visit my hometown is in spring. 二、6.M：What's the temperature today? W：It's minus 20 degrees. 7．M：The best time to go swimming is in July. W：I don't think so.I think it's in December. 8．M：What are you going to do? W：I'm going to the park to skate. 9．M：It's nice to see the sun in December. W：Yes，it's warm. 10．M：What will you do tomorrow? W：I'll stay at home and read a book because it will probably rain. 三、Text 1 M：Hi，Lucy! What's your plan? W：I'm going to Weihai. M：That sounds great.Is it the best time to travel to Weihai?
UNIT 1 达标测试卷 第Ⅰ卷听力部分 听力材料： 一、1.Jack hurt his knee playing soccer in P．E.class. 2．You should see a doctor and get an X-ray. 3．Mr.White has a toothache. What should he do? 4．Mike is interested in mountain climbing. 5．Linda should stay in bed for a few days. 二、6.What's the matter with you? 7．You should drink lots of water. 8．I have a sore back. 9．Should I put some medicine on the cut? 10．What did you do on the weekend? 三、Text 1 W：Hi, Liu Peng. What's the matter？Did you hurt yourself playing soccer? M：No, I didn't. W：Did you fall down? M：Yes, I did. W：You should go home and get some rest. Text 2 M：Does Mike have a fever? W：No, he doesn't. He has a stomachache. M：He should drink some hot water. 四、How to Stay Healthy Roy was often ill. He wanted to be healthy very much. But he didn't know what to do. Mr.White told him how to keep healthy.“First, you must look after yourself. Then do something good. For example，taking a walk after supper，doing eye exercises，eating a lot of fruit and vegetables and so on. All of them are good for your health. Remember！Don't do anything bad for your health. For example，watching TV too much，reading in bed，eating too much，going to bed late and so on. All of them are bad for your health.” After that he always did as Mr.White told him. He is very healthy now. 听力答案： 一、1～5: CDAEB 二、6～10: BCAAB 三、11～15：ABCBA四、16～20：TTFFF 第Ⅱ卷笔试部分 五、21.B22.A23.D24.A25.C26.D27.C28.A 29．A点拨：考查because of及by oneself。前者意为“因为”，后接名词或代词。后者意为“独自”，由主语she可知用herself。30.C 六、31.A32.C 33．B点拨：分析前后文可知，“我”在请求上帝给“我”一双鞋。 34．D
八年级练习册下册语文答案人教版2020 1课藤野先生 一、1 fēi jì pá jié sù dìng pōu qī piē 2鉴蔼畸逊寓匿疾诲聊3(1)借口。 (2)指改朝换代后仍眷念前朝不肯归顺新朝的人。 (3)这里是反语，丑陋。(4)这里是反语，指十分熟知一些无聊的事。 (5)这里是反语，指那些为军阀政客张目而自命为“正人君子”的文人。 (6)这里指学校里发生过的一些事情。4(1)周树人绍兴文学思想革命(2)《朝花夕拾》《阿长与》《从百草园到三味书屋》《呐喊》《彷徨》《野草》 二、(一) 5“这样”指“清国留学生”的种种丑态丑行。“无非”是只不过的意思，表达了作者对东京的失望之情。这句话引出前两段 内容，表达作者对“清国留学生”的厌恶和反感，为下文到别的地方 去看看埋下了伏笔。 6厌恶、鄙弃的态度。通过描写“清国留学生” 观樱花的丑态和学跳舞的丑行来表现的，并使用比喻、夸张、反语等 修辞手法增强这种表达效果。7 “时时记起”是因为“在我所认为我 师之中，他是最使我感激，给我鼓励的一个”“他的性格，在我的眼 里和心里是伟大的”。藤野先生的伟大人格主要体现在两方面：一是 对工作极为认真，对学生极为负责；二是毫无狭隘的民族偏见。 8答 案举例：作者两次易地求学，两次辗转奔波，都贯穿着爱国主义情怀。文章开头写对东京的清国留学生的失望和厌恶，是作者爱国思想的表现；往仙台途中记得“日暮里”，也有“日暮乡关何处是”的家国愁思；记得“水户”，是因为这里是富有民族气节和爱国情感的抗清志 士朱舜水客死之地，这也是作者爱国感情的表现。9略 10 (1)这些词 语表现了藤野先生对工作的热忱、负责、一丝不苟的品质，也写出了“我”的吃惊、对先生的感激及内心的不安。(2)“喝采”说明这些闲 人已经麻木到令人震惊的水准，表现了作者极其沉痛的情感。“何尝”表达了作者强烈的愤慨。
新人教版八年级上册语文练习册答案 【本节导读】语文是偏重从文献角度研究语言和文字的学科总称，一般包括文字学、训诂学、音韵学、校勘学等。中国由于古代文献丰富，文字比较特殊，语文比较发达，广义的语文也应该包括语言学，也就是语言学和文字学的总称，但现在由于国际学术分科中语言学是一大类，所以目前反而是语文学从属于语言学，成为语言学的一个分支。语文能力是学习其他学科和科学的基础，也是一门重要的人文社会科学，是人们相互交流思想等的工具。《语文》也是中国的学校等教育机构开设的一门主要学科，中国语文教科书一般讲授的是汉语文。搜集的《新人教版八年级上册语文练习册答案》，希望对同学们有帮助。 【《芦花荡》】 一.积累运用 1.A 2.(1)犁铧黎明梨树(2)船舱沧海抢劫(3)烧水阻挠浇花 (4)树梢稍微俏皮(5)穿梭俊美疏浚(6)竹篙蒿草嵩山 3.(1)渗——惨林林——淋淋(2)窜——蹿窜——蹿
(3)末——抹(4)错——措 4.(1)心里描写(2)肖像描写 5.C 6.B 7.撑奔着飘 8.示例：让我们做根的事业吧，把养分输送给叶和花。 让我们做土的事业吧，把千万棵花孕育的根深叶茂。 9.B (二)阅读鉴赏 (一)1.“一声一声想连珠箭，射穿老头子的心。”这个比喻句形象地表现了老头子内疚到了极点，痛苦到了极点，他感到耻辱，无地自容。 2.因为他感到自己没有顺利完成任务，自己向部队作的保证落了空，觉得没脸见部队。与“过于自信与自尊”一句照应。 3.衬托老头子因女孩受伤而自责、失落的心。飒飒的风响正像老头子不平静的心。 (二).“苇叶因为性质的软硬、坚固和脆弱，各有各的用途……捉鱼用”(眼前看见到的苇是实写);“我走在淀边上，想象假如是五月，那回事苇的世界”(想象和联想的苇，则是虚写)。 作用：虚实结合的写法，把人和苇紧紧结合在一起，既富有地方
人教版八年级物理（上）配套练习册参考答案 第一章机械运动 第一节长度和时间的测量基础练习1米。千米。分米。厘米。毫米。纳米。2、1mm。0.68。3测量值。真实值。多次测量求平均值。不遵守仪器的使用规则。读书粗心。4A。5B。6D。7D。8D。9C。10D。11B。综合提升12偏小。13A。14B。15A。实践探究16、1。3.24/3.25/3.26。 17、（1）1.57/1.58/1.59。（2）B 第二节运动的描述基础练习1运动。静止。2歼-15战机。航空母舰/甲板。3船。江岸。4位置。参照物。5B。6B。7B。8是相对于跑步机的跑道跑了2千米。相对于地面当然是静止的。综合提升9地球。10、静止、向北运动或向南运动（速度小于列车的速度）。11B。实践探究12C。13（1）汽车在公路上奔驰；以迅速移动的背景作参照物。（2）能。可以让背景快速运动。第三节运动的快慢基础练习1、运动快慢。v=s/t。m/s。km/h。3.6。2、5。3A。4D。5C。6D。7、4m/s 综合提升8相同时间内比较通过路程的长短。相同路程内比较所用时间的长短。9、3。15。10（1）从标志牌处到西大桥的流程为8km。（2）该路段车辆可行驶的最大速度为40km/h。12。11D。实践探究12、5。6。快。第四节测量平均速度基础练习1、v=s/t。路程。时间。卷尺。停表2、AB：0.600、2、0.300。BC：0.400、1、0.400。AC：1.000、3、0.333。3（1）匀速。6。（2）1.2。（3）小于。综合提升4（1）t=10：05-10：00=5min （2）v=s/t=6.0km/5min=72.0km/h。5、80km/h。200km 。实践探究6、（1）5.0（2）6.7（3）7.1（4）6.1（5）6.1。 第一章综合练习一、1、cm。dm。cm。cm。2、20。18。3、1.2米每秒。成年人正常步行每秒通过1.2米的路程。4运动。橡皮筏。5静止。运动。6、1250。7、1.25。8、白烟。降低。11.71。二、9D。10C。11B。12B。13D。14C。15D。16A。17C。18B。19B。三、20、(1)1mm。3.13/3.14/3.15/。(2)22.5。21、（1）0.6000。（2）20。（3）s/t。0.9。22、2.00、4、0.500四、24、53m。25、39s。 第二章声现象 第一节基础练习1、振动。空气。2空气。电子通讯设备（无线电）。3、介质。不能。4、时间。种类。温度。340。5、回声。区分开。响亮。6C。7A。综合提升8、发声的物体在振动。空气可以传声。不会。9B。10C。实践探究11（1）乙。丙（2）甲说明声音的传播需要介质。12、1836m。第二节声音的特性基础练习1、音调。响度。音色。2、频率。赫兹。Hz。3、超声波。次声波。4、高低。频率。强弱。振幅。远近。5、音色。6B。7B。8C。综合提升9、响度。音调。10、（1）（2）（4）（7）。11C。12B。13A。14D。15C。实践探究16（1）慢。低。（2）大。强。17（1）能。（2）几乎听不到（或听不到）手机铃声。（3）真空不能传声。第三节声的利用基础练习1、超声。超声导盲仪。倒车雷达。声呐。2、B超。3、能量。能量。4D。5B。6C。综合提升7A。8A。9C。实践探究10、1530。真空不能传声。（超声波不能在真空传播） 第四节噪声的危害和控制基础练习1、无规则振动。干扰。2、90.。70.。50.。3、声源。传播过程中。人耳。4B。5D 综合提升6、噪声。7、声源。产生。8D。9C。10D。实践探究11、隔音盘可以反射和吸收部分声音。 第二章综合练习一、1、振动。音调。空气。2、振动。音色。3、响度。音色。4、响度大。音调高。5、音调。音色。6、超声波。7、振动。响度。340.。8、向一方测摆。能量。 9、次声波。10、甲。乙。二、11B。12A。13C。14B。15C。16A。17B。18A。19B。三、20、空气柱。音调。21、介质。22（1）发声的物体在振动。（2）液体可以传声。23、下面。
一、用括号内所给词的恰当形式填空 1．Please tell us your hobbies and ________ (interest)． 2．We all want to help out as__________ (volunteer) at the sports meeting. 3．Are you interested in __________ (hand) out these notices? 4．We're all free __________ (help) the poor children. 5．(2016·无锡)When night came, they put up a tent ______________ (keep) warm. 二、单项选择 6．(2016·郴州)—Mrs. White, can I leave my homework for tomorrow? —I'm afraid not. Don't ________ what you can do today till tomorrow. A．put off B．get off C．take off 7．(2015·日照)His opinions are similar ________ yours but different ________ Julia's. A．to; from B．from; to C．as; with D．with; as 8．(2015·济南)Before World Environment Day came, my classmates and I decided to ________ some signs in our community. A．put up B．come up C．look up D．grow up 9．My father's clock is broken. I'm trying to find a repairman who can ________ for him. A．fix it up B．fix up it C．put it up D．put up it 10．—I'm worried about ________ good grades. —Me too. We must study hard ________ to a good university. A．get; go B．getting; to go C．to get; to go D．getting; going
8年级下册数学练习册答案 §11.1全等三角形 一、1.C2.C 二、1.(1)①ABDE②ACDC③BCEC (2)①∠A∠D②∠B∠E③∠ACB∠DCE 2.1204 三、1.对应角分别是：∠AOC和∠DOB，∠ACO和∠DBO，∠A和∠D. 对应边分别是：AO和DO，OB和OC，AC和DB. 2.相等，理由如下： ∵△ABC≌△DFE∴BC=FE∴BC-EC=FE-EC∴BE=FC 3.相等，理由如下：∵△ABC≌△AEF∴∠CAB=∠FAE∴∠CAB—∠BAF=∠FAE—∠BAF即∠CAF=∠EAB §11.2全等三角形的判定(一) 一、1.1002.△BAD,三边对应相等的两个三角形全等(SSS) 3.2,△ADB≌△DAC，△ABC≌△DCB 4.24 二、1.∵BG=CE∴BE=CG在△ABE和△DCG中， ∴△ABE≌△DCG(SSS)，∴∠B=∠C 2.∵D是BC中点，∴BD=CD，在△ABD和△ACD中， ∴△ABD≌△ACD(SSS)，∴∠ADB=∠ADC 又∵∠ADB+∠ADC=180°∴∠ADB=90°∴AD⊥BC
3.提示：证△AEC≌△BFD，∠DAB=∠CBA,∵∠1=∠2∴∠DAB-∠1=∠CBA-∠2可得∠ACE=∠FDB §11.2全等三角形的判定(二) 一、1.D2.C 二、1.OB=OC2.95 三、1.提示：利用“SAS”证△DAB≌△CBA可得∠DAC=∠DBC. 2.∵∠1=∠2∴∠1+∠CAD=∠2+∠CAD即∠BAC=∠DAE，在△BAC 和△DAE中，∴△BAC≌△DAE(SAS)∴BC=DE 3.(1)可添加条件为：BC=EF或BE=CF (2)∵AB∥DE∴∠B=∠DEF，在△ABC和△DEF中， ∴△ABC≌△DEF(SAS) §11.2全等三角形的判定(三) 一、1.C2.C 二、1.AAS2.(1)SAS(2)ASA3.(答案不唯一)∠B=∠B1，∠C=∠C1等三、1.在△ACE和△ABD中，∴△ACE≌△ABD(AAS) 2.(1)∵AB//DE∴∠B=∠DEF∵AC//DF∴∠ACB=∠F又∵BE=CF ∴BE+EC=CF+EC∴BC=EF∴△ABC≌△DEF(ASA) 3.提示：用“AAS”和“ASA”均可证明. §11.2全等三角形的判定(四) 一、1.D2.C 二、1.ADC，HL;CBESAS2.AB=A'B'(答案不唯一) 3.Rt△ABC，Rt△DCB，AAS，△DOC
《新课程课堂同步练习册·数学(人教版八年级上册)》 参考答案第十一章全等三角形 §11.1全等三角形 一、1. C 2. C 二、1.（1）①AB DE ②AC DC ③BC EC （2）①∠A ∠D ②∠B ∠E ③∠ACB ∠DCE 2. 120 4 三、1.对应角分别是：∠AOC和∠DOB，∠ACO和∠DBO，∠A和∠D. 对应边分别是：AO和DO，OB和OC，AC和DB. 2.相等，理由如下： ∵△ABC≌△DFE ∴BC=FE ∴BC-EC=FE-EC ∴BE=FC 3.相等，理由如下：∵△ABC≌△AEF ∴∠CAB=∠FAE ∴∠CAB—∠BAF=∠FAE —∠BAF 即∠CAF=∠EAB §11.2全等三角形的判定（一） 一、1. 100 2. △BAD,三边对应相等的两个三角形全等（SSS） 3. 2, △ADB≌△DAC，△ABC≌△DCB 4. 24 二、1. ∵BG=CE ∴BE=CG 在△ABE和△DCG中， ∴△ABE≌△DCG（SSS），∴∠B=∠C 2. ∵D是BC中点，∴BD=CD，在△ABD和△ACD中， ∴△ABD≌△ACD（SSS），∴∠ADB=∠ADC 又∵∠ADB+∠ADC=180°∴∠ADB=90° ∴AD⊥BC 3.提示：证△AEC≌△BFD，∠DAB=∠CBA, ∵∠1=∠2 ∴∠DAB-∠1=∠CBA-∠2 可得∠ACE=∠FDB §11.2全等三角形的判定（二） 一、1.D 2.C
二、1.OB=OC 2. 95 三、1. 提示：利用“SAS”证△DAB≌△CBA可得∠DAC=∠DBC. 2. ∵∠1=∠2 ∴∠1+∠CAD=∠2+∠CAD即∠BAC=∠DAE，在△BAC和△DAE中， ∴△BAC≌△DAE（SAS）∴BC=DE 3.（1）可添加条件为：BC=EF或BE=CF （2）∵AB∥DE ∴∠B=∠DEF，在△ABC和△DEF中， ∴△ABC≌△DEF（SAS） §11.2全等三角形的判定（三） 一、1. C 2. C 二、1.AAS 2.（1）SAS （2）ASA 3.（答案不唯一）∠B=∠Ｂ１，∠C=∠Ｃ１等 三、1.在△ACE和△ABD中，∴△ACE≌△ABD（AAS） 2.（1）∵AB//DE ∴∠B=∠DEF ∵AC//DF ∴∠ACB=∠F 又∵BE=CF ∴BE+EC=CF+EC ∴BC=EF ∴△ABC≌△DEF（ASA） 3. 提示：用“AAS”和“ASA”均可证明. §11.2全等三角形的判定（四） 一、1．D 2.C 二、1.ADC，HL；CBE SAS 2. AB=A＇B＇(答案不唯一) 3.Rt△ABC，Rt△DCB，AAS，△DOC 三、1.证明：∵AE⊥BC，DF⊥BC，∴∠CEA=∠DFB=90°∵BE=CF，∴BC-BE=BC-CF 即CE=BF 在Rt△ACE和Rt△DBF中，∴Rt△ACE≌Rt△DBF（HL） ∴∠ACB=∠DBC ∴AC//DB 2.证明：∵AD⊥BC，CE⊥AB ∴∠ADB=∠CEB=90°.又∵∠B=∠B ，AD=CE ∴△ADB≌△CEB（AAS） 3.（1）提示利用“HL”证Rt△ADO≌Rt△AEO,进而得∠1=∠2； （2）提示利用“AAS”证△ADO≌△AEO,进而得OD=OE.
八年级下册练习册语文参考答案人教版2019 1课藤野先生 一、1 fēi jì pá jié sù dìng pōu qī piē 2鉴蔼畸逊寓匿疾 诲聊3(1)借口。 (2)指改朝换代后仍眷念前朝不肯归顺新朝的人。(3)这里是反语，丑陋。(4)这里是反语，指十分熟知一些无聊的事。 (5)这里是反语，指那些为军阀政客张目而自命为“正人君子”的文人。 (6)这里指学校里发生过的一些事情。4(1)周树人绍兴文学思想革命(2)《朝花夕拾》《阿长与》《从百草园到三味书屋》《呐喊》《彷徨》《野草》 二、(一) 5“这样”指“清国留学生”的种种丑态丑行。“无非”是 只不过的意思，表达了作者对东京的失望之情。这句话引出前两段内容，表达作者对“清国留学生”的厌恶和反感，为下文到别的地方去 看看埋下了伏笔。 6厌恶、鄙弃的态度。通过描写“清国留学生”观 樱花的丑态和学跳舞的丑行来表现的，并使用比喻、夸张、反语等修 辞手法增强这种表达效果。7 “时时记起”是因为“在我所认为我师 之中，他是最使我感激，给我鼓励的一个”“他的性格，在我的眼里 和心里是伟大的”。藤野先生的伟大人格主要体现在两方面：一是对 工作极为认真，对学生极为负责；二是毫无狭隘的民族偏见。 8答案 举例：作者两次易地求学，两次辗转奔波，都贯穿着爱国主义情怀。 文章开头写对东京的清国留学生的失望和厌恶，是作者爱国思想的表现；往仙台途中记得“日暮里”，也有“日暮乡关何处是”的家国愁思；记得“水户”，是因为这里是富有民族气节和爱国情感的抗清志 士朱舜水客死之地，这也是作者爱国感情的表现。9略 10 (1)这些词 语表现了藤野先生对工作的热忱、负责、一丝不苟的品质，也写出了“我”的吃惊、对先生的感激及内心的不安。(2)“喝采”说明这些闲 人已经麻木到令人震惊的水准，表现了作者极其沉痛的情感。“何尝”表达了作者强烈的愤慨。